{
  "manageEntity": {
    "action": "Create",
    "entityId": "729607202",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"body\":\"[Blind test] Chose this track. sounds louder\",\"entity_id\":479068059,\"entity_type\":\"Track\",\"track_timestamp_s\":0}}",
    "nonce": "1775543050469973179",
    "signature": "0x43f4345e2a47535a68d2b6bfc0999d14c2b212ce62faa058f205e59c69c24d1c3e0f802a056ca84c57a16cece45fdbd45458b75be4fe816531d0abd6ca663a251b",
    "signer": "0x43e766989e99A80eCF18BF165011e01fbFC3A676",
    "userId": "106879"
  }
}